1. Refactor the SNIA API

2. Remove the SAMSUNG KVAPI
3. Add initialization configuration from environment variables
4. Bug fix

Support multiple-thread for KVBench (RocksDB and KVAPI)

v1.4.0

1. Add container support
2. Add support for Centos6.6 kernel driver v2.6.32, Centos7.1 kernel driver v3.10.0-229, kernel driver v4.14.81, and Centos7.7 kernel driver v3.10.0-1062
3. Add partial retrieve support
4. New key generator in kv_bench to guarantees the keys to be read existed

Support SNIA KV API

1. fix multiple bugs, 2. Adapt to the firmware changes about the name…

…space utilization, 3. Emulator supports multiple-instance creation

Move KVCeph & KVRocks to a separate repository